Publications by authors named "Kaspar Hurni"

Grassland landscapes are important ecosystems in East Africa, providing habitat and grazing grounds for wildlife and livestock and supporting pastoralism, an essential part of the agricultural sector. Since future grassland availability directly affects the future mobility needs of pastoralists and wildlife, we aim to model changes in the distribution of key grassland species under climate change. Here we combine a global and regional climate model with a machine learning-based species distribution model to understand the impact of regional climate change on different key grass species.

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Article Synopsis
  • Understanding the effects of cash crop expansion, especially natural rubber, on forests is crucial, yet existing global maps are lacking and deforestation impacts have been largely based on models rather than actual data.
  • Using Earth observation satellite data, researchers created high-resolution maps revealing that deforestation caused by rubber farming has been significantly underestimated in policies and reports.
  • With over 4 million hectares of forest lost to rubber cultivation since 1993, including critical biodiversity areas, it's essential for policymakers to address rubber's impact on ecosystems and biodiversity in future legislation.*
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Mosaic landscapes under shifting cultivation, with their dynamic mix of managed and natural land covers, often fall through the cracks in remote sensing-based land cover and land use classifications, as these are unable to adequately capture such landscapes' dynamic nature and complex spectral and spatial signatures. But information about such landscapes is urgently needed to improve the outcomes of global earth system modelling and large-scale carbon and greenhouse gas accounting. This study combines existing global Landsat-based deforestation data covering the years 2000 to 2014 with very high-resolution satellite imagery to visually detect the specific spatio-temporal pattern of shifting cultivation at a one-degree cell resolution worldwide.

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